5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9d

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 11:52

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General

Target

5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe
Size

94KB
MD5

6423f6245e7db0ef8f313a9751a557a0
SHA1

8c1b8b24710a2596542920efc2a4d8b9917e163e
SHA256

5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9d
SHA512

78ceb19b58dec946398c762a095a1d2c4bb078e41c1528f90cf6729a488b5c865abd2a53f4042d456d369390993057c32995c2129acece553ad45184796fb0ad
SSDEEP

1536:skPjmPwvx3PtLBzGMlGO+eo+zCj4CFgjASG3KazRZICrWaGZh7LLx1t:skLmuftLBzfIOz4VSGaqJrWNZ1Lx1t

Score

7^/10

defense_evasion discovery persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	Wwansvc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\Wwansvc.exe\" /run"	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wwansvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 2520	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	83
PID 4400 wrote to memory of 2520	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	83
PID 4400 wrote to memory of 2520	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	83
PID 4400 wrote to memory of 1500	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	103
PID 4400 wrote to memory of 1500	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	103
PID 4400 wrote to memory of 1500	4400	5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe	103

C:\Users\Admin\AppData\Local\Temp\5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe
"C:\Users\Admin\AppData\Local\Temp\5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4400
- C:\ProgramData\Update\Wwansvc.exe
  "C:\ProgramData\Update\Wwansvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\5f1ca318ae668c02fe8ec384995e243a7d7a4d82de2f2803e5f01b9ecc8fce9dN.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\Wwansvc.exe

Filesize
94KB

MD5
467fdd9f0f0d5e784efff884f7566156

SHA1
6ecd87069d1ffe79630e3121016368b749df0f64

SHA256
59855b0b7867e152018640d5d8e74e43e4a0819d1049167f49941f8a37ecbc28

SHA512
4ab7988c3585cdc6e95882dec2d011b0ce4464a57c97e31d18f2630c235d95b65cb23c13f1296089d4ca35850c9503496b454f0abd80d3c7e56f2c302cb6ade9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads